About the Authors

Jessica Satkoski Trask

jasatkoski@ucdavis.edu

Affiliations Department of Anthropology, University of California Davis, Davis, California, United States of America, California National Primate Research Center, University of California Davis, Davis, California, United States of America

Debra George

Affiliation Department of Anthropology, University of California Davis, Davis, California, United States of America

Paul Houghton

Affiliation Primate Products, Inc., Immokalee, Florida, United States of America

Sree Kanthaswamy

Affiliations California National Primate Research Center, University of California Davis, Davis, California, United States of America, Department of Environmental Toxicology, University of California Davis, Davis, California, United States of America

David Glenn Smith

Affiliations Department of Anthropology, University of California Davis, Davis, California, United States of America, California National Primate Research Center, University of California Davis, Davis, California, United States of America

Competing Interests

Paul Houghton, a co-author, is employed by Primate Products, Incorporated. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: JST PH NG SK DGS. Performed the experiments: JST DG. Analyzed the data: JST. Contributed reagents/materials/analysis tools: PH NG SK DGS. Wrote the paper: JST DGS.